CVE-2026-63519: Microsoft Office Graphics Component Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Other sources
Microsoft Office Graphics Component Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.112.26081010
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63519?
The severity of CVE-2026-63519 is rated high with a score of 7.8.
How do I fix CVE-2026-63519?
To fix CVE-2026-63519, ensure that you apply the latest security updates provided by Microsoft for your version of Office.
What type of vulnerability is CVE-2026-63519?
CVE-2026-63519 is a heap-based buffer overflow vulnerability.
What impact does CVE-2026-63519 have on system security?
CVE-2026-63519 can allow an unauthorized attacker to execute code locally, potentially compromising system security.
Which software versions are affected by CVE-2026-63519?
CVE-2026-63519 affects various editions of Microsoft 365 Apps for Enterprise and Microsoft Office LTSC and 2019 versions.